Can I have a Roamio hooked up to wireless and a Tivo Mini hooked up to moca?

Hooked up my new Roamio (it's the basic one) just fine to wireless (Cox cable & internet) and it is working great. Now I'd like to hook up a tivo mini. While I realize that the mini needs an ethernet connection, can I create a moca connection and have it work with the wireless Roamio?

I'm not tech savvy as most of you are on these forums. The way I grasp the moca connection is that I have a splitter that splits the cable between internet and TV. The internet cable would be attached to an adapter which in turn would be used to the internet connection to the mini? Do I have it right?

Just went through this myself. Not sure if you have a basic, but the the Roamio Plus and Pro will not bridge wireless to moca. That said, I've got my Romio ethernet port connected to a wireless AC bridge, and it will bridge that connection to Moca. I have 2 Minis connected so far, one to another wireless bridge, the other via Moca. So far they've worked every time I've tried to use them and the family isn't complaining. I'm even pushing HD movies to the Roamio and streaming to the Mini without issue.

I can't say I understand this limitation. All of the streaming traffic between the Tivo and Mini is going to be across the wired MoCA connection; why should it care what the upstream connectivity is? I'm in the same boat, and none too happy about having to run new cabling, or buy an additional box (either a MoCA adapter to put next to the cable modem or an external wireless adapter for the Roamio Pro).